Question

How does your body defeat a virus?

Answer 1

Phagocytosis:

1. The human body consists of the immune system which is responsible for destroying foreign pathogenic molecules via phagocytosis (cellular process for ingesting and eliminating particles).
2. The cytotoxic T-cells which are WBCs (white blood cells known as lymphocytes) are part of cell-mediated immunity.
3. They circulate in the body searching for infectious agents.
4. Upon encounter of a virus cell T-cell releases cytotoxic factors which destroy the affected cell as well as prevent the virus from spreading.
5. They also activate other immune cells for a stronger response against the surviving probable infectious agents.
6. The viral antigen can be activated by T-helper (T-lymphocytes responsible for recognizing foreign antigens) cells, which stimulated the activation of B lymphocytes (humoral immunity) and other T-cells.